Fan won't shut off, no matter if on heat, cool, AC.

[Dianna Williams]

2012 Jeep Liberty. No matter what I turn the dials to, the fan blows constantly when I start the engine. And no matter if I put it on vents, the defrost air is blowing.

 

[JPNinPA]

So the fan is always on, and, it only blows through the defrost?

Defrost only is a vacuum leak.
Always on sounds like the switch is bad.


Sent from my iPhone using Jeepz.com mobile app

 

[carlojeep]

Could be a bad fan control module or relay.